Shank and socket fastening device



5 o l I I Aug 927 G. H. ELWELL SHANK AND SOCKET FASTENING DEVICE FiledNov. 21. 192:

WITNESSES:

INVENTOR- Patented Aug. 2,1927.

Y nome mmy ELWELL, or 'eLnvnLa-nD; omo, Assrenoa'ro CARR rns'rmmn con- II 24151101:- cnmnmnenynassaonusn'rrs, A eonr'oaarron OFIYMAINE.

SHANK Am; socxn'r FASTENING DEVICE.

Application filed November 21, 1921. Serial No. 516,818.

"Ilhisinvention aims to prot ide improvements in stud and socketdevices.- Y T I In the drawings, which illustratea preferred embodimentof myinvention:-' Figure 1' is a cross-sectional view. of the .1 deviceshowing the grommet detached;

Fig. 2' is a front elevation.,'of the stud member; I I I Fig. 3 is aside view otthe device showing the grommet in cross-section; I 4 is afront elevation of the preferred I form of device h Fig, 5 's a rearviewot the body part'of the stud member; 8 r I part shown I I Fig. 9includes front and rear elevations;

respeetively ot the button part of the stud member; and I p I I Fig; 10includes a side elevation and a plan view, respectlvely of the buttonmember. i a

' f Referringto the preferred form of my in erablypressed from a singlesheet' ot metal thereby to present a base portlon 1 and a shankjpart 2:the shank part being first formed generally cylindrical with an open"endand thereafterformed somewhat elhptical 9 by pressing inwardly twowinglike parts 3 and 4' located in the upperpor'tion of theshankportion,thereby to provide a "slot 5, as bestillustrated in Fig. '6. I At theouter end of the shank part 2,

I have provided a saddle-shaped top 6, the purposes of which are morefully hereina fte'r described. The shank part 2 is also provided with a,bottom slot 7, which ex- "tends from thefouter end of the shank portioninto the base in the same manner as i [the-slot 5; thereby fto permitinsertion*in* the shank portion of a button 9, also formed generally;elliptical in cross sectionfi The button presents saddle-shaped parts 10and 11 and a: socket-engaging part 12 generallyrectangularincross-seetion. Lugs 13' are 1 rovided at the inner end ofthebuttonfli), 'and thus extend outwardly therefrom (Figs. 9 and 10) tolimit the forwardmovement Fig. 6 is a plan view of the part shown in fgrommet; as desired.

While I have shown and described apre-J thereof'relative to theshankpart 2. These lugs 13 provide stops which abut against the baseportion 1 of thestud andlimit the movement of the button I in onedirection relative to the shank 2.

The preferred form of fastening means for the studmember includes anattaching 1 screw 14 secured to a plate 15 which in turn,

is held in place relative to the base 1 ofthe stud member by a pluralityof prongs'B formed integral with thebase The. plate 15 I also serves asa means for holding the spring 16 and the button!) in assembled relationto the shank member. y a The preferred form of socket, as'illus-.euredto' the stud. member byengaging the shank 2 of the stud memberinjthe aperture I I Pressure exerted between the stud, member and thegrommet. causes the button to be moved inwardly againstthe pressure ofthe spring. thereby permitting thev grommet to be positioned oppositethe recess 18 pro- "vided in the shank 2 between the saddle-topsvention, I' have shown a stud member pref- 6 and 11. as bestillustratedinFig'. 1.

*When' the grommet is oppositethe recess..18.

the button is released and urged forward again bv'the spring 16,.therebvpermitting the' socket-engaging part-12 to enter the grommet and 'shit'tthe grommet into the Separation ofthegrommet and stud is efiected byurging the button 9 toward the while the socket-engaging part ,is movedout of enn'a srement with the-grommetthereby permitting separation ofthe fastener trated'. isa grommet 17. which may be sehese 1. so that thesloping' shoulder19 on 'the saddle-top 10 may lift the grommet byrelativetippingof one part relative to the other. e I

"By emittir'in the saddle-top 11. the shank 2 may accommodate twogrommets or. one

ferredform of one embodimentaofimyiinvention, 1t will be understood'thatchanges may be made, involvlngomiss on, SllbSt-ltlP 'tion,alteration and reversal oi parts, and even changesin the mode ofoperatiomwith a end ofsaid stud-post having a rigid hookout departingfrom the scope of my invention, which is best defined in the followingclaims.

W'hat I claim is z 1. A fastener comprising, in combination,

a socket presenting a stud-receiving aperture surrounded by a wall oftired dimensions, a stud having two parts axially movable relative toeach other to permit engagement and disengagement between the stud andthe socket, one of said parts provided with fixed means engageable withthe wall surrounding the stud-receiving aperture, while said other partprovides rigid iii-cans for preventmg sepei'ation of the stud and socketuntil axially sliift'edrelative to said' part which engages said socket.p 1

2'. A fastener comprising, in combination, a socket presenting astud-receiving aperture surrounded by a wall of fixed dimensions, astud-having two parts axially movable relative to each other to permitengagement ant disengagement betwveen the stud and the socket, one ofsaid parts liavmg a groove in which the wall surrounding thestud-receiving aperture may engage, said otherpart providing means forintei'locking'the wall and groove to prevent separation of the stud andsocket unt-ilsa id other part is axially shifted relative to said partwhich engages said socket, and resilient means normally acting upon oneof said parts to position it relative to the other pa rt so-"that one ofsaid parts has to be shifted relative to the other part before the studand socket can be engaged or separated, p V

3. A fastening device comprising a socket member having means forattachment to a support, a stud-receiving aperture therethroughfori'eceiviiig the shank ofa stud, a stud member comprising a stud-posthaving means for attachment to a support, the

shaped head integral therewith, said head presenting a rearwai'dlyfacingrigid shoul der, an axially shift-able push-button element movablyconnected with said stud-post and liavinga forwardly facingrigidshouldered portion integral therewith and normally positioneddiametrically opposite said rigid shoulder of said stud-post when saidpush-button element is in its forward position, the normal diameter ofthe extremity of said stud member being Q'I'Bilfltllflll that of saidaperture of said socket member by reason of said shoulders, saidforwardly facing shoulder being adapted for yielding engagement withsaid socket member in a plane parallel with the axis of the stud therebyto diminish the normal diameter of the extremity of said-shank member topermit the stud head toentcr said passage, said socket member presentinga. stud-engaging wall adjacent said aperture adapted to lodgebehindsaid'rearwardly facing shoulder of said two-section lie-ad normalsaid stud-post, said forwardly facing shouldered portion adapted toenter said aperture and engage saidv wall when said stud and socket areengaged thereby to lock them against accidental separation, and springmeans adapted to. maintain said push-but- ,ton element in its normalforward position.

4. A fastening device comprising a socket member hav ng iieans forattachmentto a support, a stud-receiving aperture there through forreceiving the shank of a stud, a

to entersaid aperture in said socl-cct and i d socketthereby block thewithdrawal. of

member from said stud nieinbei, spring means normally to maintain saidblocking means in its blocking position.

it fastening device co: member having means for support, astud-receiving an through for receiving the s of a stud, a stud memberhaving attachinp' J ns for seouring said stud to a support and being provided with a two-section l shaped head,

y being of greater diameter than that of said aperti-i-re in said socketmember, one of said sections being adapted' for axial yieldingengagement with said socket member to diminisli said diameter of saidheadat the hook- I "shaped portion thereof, thus enabling said sockettobecome engagedavith said stud member behind said hook shaped head, the

"inner baokwardly facing surface: ofsaid hook fixedly engaging a wall ofsaid socket ad acent' to said aperture and said yielding section of saidstud. head being adapted to enter the passage of 'saidsocket member, re-

saiii-ie normal position and restore said greater diameter to said studhead upon the full engage-inent' of said members, spring meansnoii'nall'y to maintain said yielding section of tl iestud head in: itsnormal position and manually operative axially slidable means adapted tooperate SillCl yielding section of said stud head, and a bevelledsurface with which said yielding section provided, said bevelled surfacebeing adapted to slide against said wall of'said socket member andthrough said aperture, thereby to shift said socket member to aposition;back of said hook shaped head to lock said stud and socket together.

greater diameter than that of said aperture in said socket, saidyielding element being adapted to be operated ahead of said socket uponan attempted connecting "engagement therewith of said socket member,thereby shifting the shoulder on said yielding ele:

ment relative to the shoulder of the stud part to diminish sald greaterdiameter ot said stud head to permit full engagement of said fasteningmembers, said yielding element resuming its normal position so that*tory to disconnecting said members.

the shoulder of said. yielding element may enter the aperture 01 saidsocket member to restore sa d greater diai'neter and therebyftectively'block the withdrawal of said stud Inember from said SOC-l6t,l1'l0l1lb1', spring means normally to maintain said blocking means inits normal position said yielding element providing a press buttonat'the outer end of said stud whereby said yielding element may bemanually operated prepara- 7. A fastening device comprising, incom-zbination, a socket member presenting astud receiving aperture surroundedby a stud-engaging Wall, a eooperatingstud member ineluding a hollowshank portion having an integral fixed shoulder transverse to the axisoi the stud behind which a portion of said socket may engage and aresiliently pressed axially shittable member cooperating with said shankand presenting integral i means for engagement with. said stud-engagingwall to lock the stud and socket together.

8. A. fastening device comprising, in combination, a socket memberpresenting a studreceiving aperture, a cooperating stud member includinga hollow shank portion having afrecess formed therein, a slot in saidshank and an axially movable resiliently pressed member Within said studpresenting a socket engaging portion through said slot to normallyprevent engagement of the socket with the stud, said socketengagingportion operable longitudinally in said slot to permit engagement of thesocket With the recess in said shank to lock said socket there- 'withand also topermit separation of said fastening device.

9. A fastening device comprising,i1.i com-' bination, a socketpresenting a studreceivshank portion presenting a recess for engageingaperture, a cooperating stud having a i ment with said socket, aspring-pressed button operable relative to said shank and asocket-engaging part integral wlth said button and longitudinallyoperable in a slotin said shank vto permit engagement of said shank andsocket, said socket-engaging part thereafter engageable with said socketto prevent separation of said fastening device,

and said buttonmanua lly operable to permit separation of said device.

I GEORGE HENRY ELYVELL.

